By this time, we all should be familiar with the term "cloud" and what it means, and you probably already are using a cloud solution of some kind (either Dropbox, or Windows Live Mesh, or others). What about a personal cloud? A cloud that you can take with you everywhere you go that stores much more data than what you can put up in a Dropbox account. We have previously reviewed a 16GB product from Kingston, but lets take a look at something with a bit more storage. Today we will be looking at the 500GB Seagate GoFlex Satellite external WiFi hard drive, designed to give you access to media, particularly on your mobile devices, wherever you go.